ABB DCS550 - Current Control

227
Signal and parameter list
3ADW000379R0501 DCS550 Manual e e
Signal / Parameter name
min.
max.
def.
unit
Group 43: Current control
43.01 Unused
43.02 CurSel (current reference selector)
CurSel (43.02)
selector:
0 =
CurRef311 CurRef (3.11) calculated from torque reference as armature current reference, default
1 =
CurRefExt CurRefExt (43.03) as armature current reference
2 =
AI1 analog input AI1 as armature current reference
3 =
AI2 analog input AI2 as armature current reference
4 =
AI3 analog input AI3 as armature current reference
5 =
AI4 analog input AI4 as armature current reference
6 =
AI5 analog input AI5 as armature current reference
7 =
AI6 analog input AI6 as armature current reference
8 =
CurZero forces single firing pulses and sets CurRefUsed (3.12) to zero
Int. Scaling: 1 == 1 Type: C Volatile: N
CurRef311
AI6
CurRef311
-
43.03 CurRefExt (external current reference)
External current reference in percent of
M1NomCur (99.03).
Note:
CurRefExt (43.03)
is only valid, if CurSel (43.02) = CurRefExt.
Int. Scaling: 100 == 1 % Type: SI Volatile: Y
-325
325
0
43.04 CurRefSlope (current reference slope)
CurRefSlope (43.04)
in percent of M1NomCur (99.03) per 1 ms. The di/dt limitation is located at the input of
the current controller.
Int. Scaling: 100 == 1 %/ms Type: I Volatile: N
0.2
40
10
%/ms
43.05 Unused
43.06 M1KpArmCur (p-part armature current controller)
Proportional gain of
the current controller.
Example:
The controller generates 15 % of motor nominal current [
M1NomCur (99.03)] with M1KpArmCur (43.06) = 3, if
the current error is 5 % of
M1NomCur (99.03).
Int. Scaling: 100 == 1 Type: I Volatile: N
0
100
0.1
-
43.07 M1TiArmCur (i-part armature current controller)
Integral time of the current controller
. M1TiArmCur (43.07) defines the time within the integral part of the
controller achieves the same value as the proportional part.
Example:
The controller
generates 15 % of motor nominal current [M1NomCur (99.03)] with M1KpArmCur (43.06) = 3, if
the current error is 5 % of
M1NomCur (99.03). On that condition and with M1TiArmCur (43.07) = 50 ms
follows:
−
the controller generates 30 % of motor nominal current, if the current error is constant, after 50 ms are
elapsed (15 % from proportional part and 15 % from integral part).
Setting
M1TiArmCur (43.07) to 0 ms disables the integral part of the current controller and resets its
integrator.
Int. Scaling: 1 == 1 ms Type: I Volatile: N
0
10000
50
ms
43.08 M1DiscontCurLim (discontinuous current limit)
Threshold continuous / discontinuous current in percent of
M1NomCur (99.03). The actual continuous /
discontinuous current state can be read from
CurCtrlStat1 (6.03) bit 12.
Int. Scaling: 100 == 1 % Type: I Volatile: N
0
325
100
%
43.09 M1ArmL (armature inductance)
Inductance of the armature circuit in mH. Used for the EMF compensation:
dt
dI
LIRUEMF
A
AAAA
** −−=
Attention:
Do not change the default values of
M1ArmL (43.09) and M1ArmR (43.10)! Changing them will falsify the
results of the autotuning.
Int. Scaling: 100 == 1 mH Type: I Volatile: N
0
640
0
mH